CardioMems, a developer of wireless medical pressure sensors previously backed by US-based healthcare company Medtronic, has raised $37.9m in its seventh round of funding.

The $250m Peacock Equity Fund has reinvested in Healthline Networks as part of a $14m series C round following the portfolio company's rapid growth in signing up partners.

Johnson & Johnson Development Corporation, the in-house venture arm of the US-based consumer and medical goods maker, has linked up again with venture capital firm De Novo Ventures and joined the second round of financing for Astute Medical, a San Diego-based medical diagnostics company focused on high-risk conditions.

St Jude Medical, a US-based healthcare technology provider, has led a $10m investment round in iRhythm Technologies and will market its heart monitor to customers.

The decision by German conglomerate Linde and chip maker Intel to give up majority control of some of their assets has been rewarded.

US-listed conglomerate General Electric Company has made its first investment out of its new corporate venturing fund with $5m backing of California-based CardioDx.

US-listed medical technology company Safeguard Scientifics is preparing for its second flotation of a portfolio company, NuPathe for $86.25m.

Veteran respiratory technology company leader John Miclot has joined US-based Breathe Technologies after it closed its third round of funding at $23m.